sprinting vs jogging

[debob]

which one would burn up more fat and burn up less muscle?

[beefcurry1]

20 min hard cardio is ideal for losing fat without letting your body become catabolic. i have posted a link on here before (i dont remember what the thread was or even which forum) but its a good read. if i find it ill edit it on here.

edit: found it:

http://www.bodybuilding.com/fun/satter2.htm
http://www.bodybuilding.com/fun/satter3.htm

-beef-